<script lang="ts" setup name="HomeCategory">
import useStore from '@/store'
// import XtxSkeleton from '@/components/skeleton/index.vue'
import { computed, ref } from 'vue'
import { RouterLink } from 'vue-router'
const { category } = useStore()
setTimeout(() => {
  console.log(category.list[0]?.goods)
}, 3000)
// 实现思路：鼠标进入某个li ,记录id 或者下标
// 根据记录的id，动态的获取需要展示的layer goods 数据
const categoryId = ref('')

const handleEnter = (id: string) => {
  if (!id) return
  categoryId.value = id
  // console.log(categoryId.value)
}
const goods = computed(() => {
  const itemObj = category.list.find(item => item.id === categoryId.value)
  return itemObj?.goods
})
</script>
<template>
  <div class="home-category" @mouseleave="categoryId = ''">
    <!-- 菜单 -->
    <ul class="menu">
      <li
        @mouseenter="handleEnter(item.id)"
        v-for="(item, index) in category.list"
        :key="index"
        :class="{ active: item.id === categoryId }"
      >
        <RouterLink to="/">{{ item.name }}</RouterLink>
        <!-- 二级 -->
        <!-- 提供的假数据没有 children 后台返回的数据，
          万一没有children，也会报错-->
        <!-- template 是vue 内置的模板标签，不糊渲染任何结构，只是用于划分结构块  -->
        <template v-if="item.children">
          <RouterLink v-for="sub in item.children?.slice(0, 2)" :key="sub.id" to="/">
            {{ sub.name }}
          </RouterLink>
        </template>
        <!-- <RouterLink to="/">清洁</RouterLink> -->
        <template v-else>
          <!-- animated  扫光效果   fade淡入淡出 -->
          <XtxSkeleton
            style="margin-left: 5px"
            :width="60"
            :height="30"
            bg="rgba(255,255,255,0.2)"
            animated
            fade
          ></XtxSkeleton>
          <XtxSkeleton
            style="margin-left: 10px"
            :width="60"
            :height="30"
            bg="rgba(255,255,255,0.2)"
            animated
            fade
          ></XtxSkeleton>
        </template>
      </li>
    </ul>

    <!-- 所有公用一个弹层 -->
    <div class="layer" v-if="goods">
      <h4>
        分类推荐
        <small>根据您的购买或浏览记录推荐</small>
      </h4>
      <ul>
        <li v-for="item in goods" :key="item.id">
          <RouterLink :to="`/product/${item.id}`">
            <img :src="item.picture" alt="" />
            <div class="info">
              <p class="name ellipsis-2">{{ item.name }}/p></p>
              <p class="desc ellipsis">{{ item.desc }}</p>
              <p class="price">
                <i>¥</i>
                {{ item.price }}
              </p>
            </div>
          </RouterLink>
        </li>
      </ul>
    </div>
  </div>
</template>
<style scoped lang="less">
.home-category {
  width: 250px;
  height: 500px;
  background: rgba(0, 0, 0, 0.8);
  position: relative;
  z-index: 99;
  .menu {
    li {
      padding-left: 40px;
      height: 55px;
      line-height: 55px;
      // &：hover  鼠标在li 此时，对应 li 正常高亮
      // &.active 鼠标悬停到对应盒子，根据id也要让对应的li 高亮
      &:hover,
      &.active {
        background: @xtxColor;
      }
      a {
        margin-right: 4px;
        color: #fff;
        &:first-child {
          font-size: 16px;
        }
      }
    }
  }
  // 问题： 你有个样式被影响了，结果不知道是谁影响的
  .layer {
    width: 990px;
    height: 500px;
    background: rgba(255, 255, 255, 0.8);
    position: absolute;
    left: 250px;
    top: 0;
    display: none;
    padding: 0 15px;
    h4 {
      font-size: 20px;
      font-weight: normal;
      line-height: 80px;
      small {
        font-size: 16px;
        color: #666;
      }
    }
    ul {
      display: flex;
      flex-wrap: wrap;
      li {
        width: 310px;
        height: 120px;
        margin-right: 15px;
        margin-bottom: 15px;
        border: 1px solid #eee;
        border-radius: 4px;
        background: #fff;
        &:nth-child(3n) {
          margin-right: 0;
        }
        a {
          display: flex;
          width: 100%;
          height: 100%;
          align-items: center;
          padding: 10px;
          &:hover {
            background: #e3f9f4;
          }
          img {
            width: 95px;
            height: 95px;
          }
          .info {
            padding-left: 10px;
            line-height: 24px;
            width: 190px;
            .name {
              font-size: 16px;
              color: #666;
            }
            .desc {
              color: #999;
            }
            .price {
              font-size: 22px;
              color: @priceColor;
              i {
                font-size: 16px;
              }
            }
          }
        }
      }
    }
  }
  &:hover {
    .layer {
      display: block;
    }
  }
}
</style>
